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O64.9 ICD-10-CM Code: Obstructed labor due to malposition and malpresentation, unspecified

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Billing Status: NO. This is a non-billable ICD-10-CM code: report a more specific billable code beneath it.

Coding at a Glance

7th character
Required — see the character table on this page

Not billable · FY2027A non-billable heading in the tabular list: report a more specific code beneath it.

What you need to know

Source: CMS/NCHS Official ICD-10-CM tabular notes, quoted. From the CMS/NCHS tabular list for the release in force. A note the category or block publishes applies to this code too; the Instructions section marks which is which.

The tabular list publishes no instructional note for this code itself.

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7th Character Guide

"One of the following 7th characters is to be assigned to each code under category O64. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O64 that has a 7th character of 1 through 9."

  • 0 — not applicable or unspecified
  • 1 — fetus 1
  • 2 — fetus 2
  • 3 — fetus 3
  • 4 — fetus 4
  • 5 — fetus 5
  • 9 — other fetus

Variant codes in this family

O64.9XX0, O64.9XX1, O64.9XX2, O64.9XX3, O64.9XX4, O64.9XX5, O64.9XX9

Character meanings are CMS's official 7th-character extensions for this family, as carried in each variant code's official description; variant codes are registry rows. The explanation of how the encounter character is assigned is MedCoder editorial, distinct from the official content above it.

Coder workflow for O64.9

MedCoder structured workflow — derived from this code’s own official record

Before you code O64.9

  1. O64.9 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).

    ReviewO64.9XX0, O64.9XX1, O64.9XX2, O64.9XX3, O64.9XX4, O64.9XX5

    See the relationships section · Guide: How to choose an ICD-10-CM code →

  2. Unspecified does not mean incorrect. When the record gives no greater specificity, O64.9 may be the appropriate code. Check the record for detail that supports a more specific sibling. An unspecified code is for records that do not provide the detail a more specific code needs; a query, not an assumption, is the route to specificity (Guidelines I.A.9.b, I.B.18).

    ReviewO64.3, O64.4, O64.5, O64.8

    See the relationships section · Guide: Other vs unspecified (NEC vs NOS) →

  3. A 7th character is required in this family. Confirm the documentation supports the character assigned — its meaning in this family is defined in the official instruction. O64.9 is not valid without one. The official 7th-character definitions for this family are quoted in the guide.

    See the 7th Character Guide

  4. O64.9’s title joins a condition with an associated condition or complication. Confirm each component is documented. Where the classification presumes the link through the “with” convention, only a provider statement that the conditions are unrelated defeats it. A combination code is assigned only when it fully identifies the documented conditions; a required second code for the stage, type or manifestation is still reported when the notes ask for it (Guidelines I.B.9, I.A.15).

    Guide: Combination codes →

  5. Confirm the condition is documented as complicating the pregnancy, childbirth, or the puerperium, and check the trimester where the code carries one and the fetus character where the category requires it. Chapter 15 codes belong on the maternal record only and take sequencing priority over codes from other chapters. It is the provider’s responsibility to state that a condition is not affecting the pregnancy; the trimester is assigned from the documentation (Guidelines I.C.15.a, I.C.15.a.1, I.C.15.a.3).

    Guide: How to choose an ICD-10-CM code →

Choose the right path

  1. Does the documentation support one of the more specific codes beneath O64.9?
    Yes → Select that code and continue the checks below on its own page.
    No → O64.9 cannot be reported as written; query for the specificity its subcategory needs.

    ReviewO64.9XX0, O64.9XX1, O64.9XX2, O64.9XX3, O64.9XX4, O64.9XX5

  2. Does the record document the detail a more specific sibling code needs?
    Yes → Review the specific siblings in this subcategory.
    No → Continue — O64.9 is appropriate when the documentation goes no further.

    ReviewO64.3, O64.4, O64.5, O64.8

  3. Does the documentation support one of this family’s 7th-character values?
    Yes → Assign the matching 7th character; the variant codes are in the 7th Character Guide.
    No → The code is invalid without its 7th character — query for the missing element.

Consider O64.9. Then confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
7th-character basis
The documented element this family’s 7th character records (see the official definitions in the 7th Character Guide).
Trimester
Assigned from the documented trimester at the encounter, or the trimester in which the condition developed for inpatient stays (Guidelines I.C.15.a.3).
The associated condition or complication
Whether the associated condition the title names is documented; the “with” convention presumes some links, and a provider statement that the conditions are unrelated defeats it (Guidelines I.A.15).
Any detail beyond this code’s title
What the record states that a more specific sibling code would capture — or its absence, which itself supports the unspecified code.

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: The provider documents the condition in the terms of this code’s title and records no further detail.

Coding question: Is a more specific sibling code supportable?

Path: Review the specific siblings in this subcategory and what each requires the record to state.

Reason: A more specific code needs documentation of the distinguishing element; without it the unspecified code is appropriate, and a provider query is the route to specificity (Guidelines I.A.9.b, I.B.18).

ReviewO64.3, O64.4, O64.5, O64.8

Documentation: Only one of the components this code’s title joins is documented.

Coding question: Is O64.9 supported?

Path: Review the code for the documented component on its own.

Reason: A combination code is assigned only when it fully identifies the documented conditions; otherwise the documented component takes its own code (Guidelines I.B.9).

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Don’t confuse O64.9 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of O64.9 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

  • O64.9XX0— Encounter relationship (Review)

    Same underlying diagnosis, different encounter phase.

    The same diagnosis at a different phase of care; one encounter takes one 7th character.

    What moves you there: Documentation of a not applicable or unspecified moves the case to O64.9XX0.

    Full comparison: O64.9 vs O64.9XX0 →

  • O64.9XX1— Encounter relationship (Review)

    Same underlying diagnosis, different encounter phase.

    The same diagnosis at a different phase of care; one encounter takes one 7th character.

    What moves you there: Documentation of a fetus 1 moves the case to O64.9XX1.

    Full comparison: O64.9 vs O64.9XX1 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Coding context

Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Code Overview

Obstructed labor due to malposition and malpresentation, unspecified is a non-billable ICD-10-CM category code (O64.9). A more specific billable subcode must be selected for claims submission.

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Verify Before Coding

  • Not billable as written — a more specific code is required: O64.9XX0, O64.9XX1, O64.9XX2, O64.9XX3, O64.9XX4.
  • Requires a 7th character. "One of the following 7th characters is to be assigned to each code under category O64. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O64 that has a 7th character of 1 through 9." Options: O64.9XX0, O64.9XX1, O64.9XX2, O64.9XX3, O64.9XX4, O64.9XX5

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder-derived relationships — computed from published CMS and AHRQ datasets

Other codes that name O64.9 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 1 Excludes1 note: O32 — Maternal care for malpresentation of fetus (via O64.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Related Codes

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main terms “Delivery”, “Dystocia”; these codes share that main term but sit in a different category of the Tabular List.

O62.1 — Secondary uterine inertia (cervical, secondary), O62.2 — Other uterine inertia (cervical), O62.3 — Precipitate labor (precipitate), O62.4 — Hypertonic, incoordinate, and prolonged uterine contractions (uterine NEC), O62.8 — Other abnormalities of forces of labor (complicated, by, abnormal, abnormality, forces of labor, specified type NEC), O62.9 — Abnormality of forces of labor, unspecified (complicated, by, dysfunction, uterus NOS), O63.0 — Prolonged first stage (of labor) (complicated, by, prolonged labor, first stage), O63.1 — Prolonged second stage (of labor) (complicated, by, prolonged labor, second stage), O63.2 — Delayed delivery of second twin, triplet, etc. (delayed NOS, second twin, triplet, etc.), O63.9 — Long labor, unspecified (delayed NOS), O65.0 — Obstructed labor due to deformed pelvis (cesarean, abnormal, pelvis, with obstructed labor), O65.1 — Obstructed labor due to generally contracted pelvis (complicated, by, obstructed labor, due to, contracted pelvis), O65.2 — Obstructed labor due to pelvic inlet contraction (complicated, by, obstructed labor, due to, pelvic, contraction, inlet), O65.3 — Obstructed labor due to pelvic outlet and mid-cavity contraction (complicated, by, obstructed labor, due to, pelvic, contraction, outlet), O65.4 — Obstructed labor due to fetopelvic disproportion, unspecified (complicated, by, obstructed labor, due to, fetopelvic disproportion), O65.5 — Obstructed labor due to abnormality of maternal pelvic organs (complicated, by, female genital mutilation), O65.8 — Obstructed labor due to other maternal pelvic abnormalities (complicated, by, obstructed labor, due to, pelvic, abnormality, specified NEC), O65.9 — Obstructed labor due to maternal pelvic abnormality, unspecified (complicated, by, obstructed labor, due to, pelvic, abnormality), O66.0 — Obstructed labor due to shoulder dystocia (shoulder), O66.1 — Obstructed labor due to locked twins (complicated, by, obstructed labor, due to, locked twins), +172 more

Contextual Map

Every relationship of O64.9 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run O64.9 with this related code in Claim Check

Hierarchy

Referenced by Excludes1 notes

Index entries

  • Delivery (childbirth) (labor), complicated, by, obstructed labor, due to, malposition[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Delivery (childbirth) (labor), complicated, by, obstructed labor, due to, malpresentation[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Dystocia, positional[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027

Nearest codes (40)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Reference

Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

Indexed Clinical Terms (3)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

Common coding questions

MedCoder editorial

Can O64.9 be billed directly?

No. O64.9 (Obstructed labor due to malposition and malpresentation, unspecified) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Does O64.9 require a 7th character?

Yes. One of the following 7th characters is to be assigned to each code under category O64. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O64 that has a 7th character of 1 through 9..

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 2026) Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder-derived relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder editorial explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 20, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "O64.9 — Obstructed labor due to malposition and malpresentation, unspecified." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/o64.9-obstructed-labor-due-to-malposition-and-malpresentation-unspecified

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Obstructed labor due to malposition and malpresentation, unspecified

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to O64.9 in its code family, with their registry titles.

View all codes in the O64 family